Fig. 4

Patient no 6. a and b Colour fundus photograph of the right and left eye respectively: both eyes have optic disc oedema with yellowish macular exudation (forming bilateral neuroretinitis) and also marked venous engorgement and tortuosity. c and d Corresponding SD-OCT macula of the right eye and left eye: fluid tracking from the oedematous optic disc to the subretinal space. Left eye especially, exhibits a loss of the normal foveal contour and marked serous macular detachment